www.ssz-gmbh.de [email protected] Thüringerstrasse 17, 46286 Dorsten
9
SAFETY UNIT
FUNCTIONALITY TESTS
•
Disconnect sensors on terminals 3, 4, 5 and 6. Short terminals
3 and 5 with one wire and terminals 4 and 6 with another.
•
After supply voltage is on red and the two green control LEDs
shall be illuminated and the output relays shall become active.
•
If terminals 3 and 4 or 5 and 6 are shorted, then both channels
shall be inactivated: the green LEDs shall be off, while the
red LED shall be illuminated.(Simulation of the SSZ pressure
sensitive equipment activation)
•
If the connection of terminals 3/5 is broken, the K1 relay shall
be inactivated. (Simulation of the broken cable).
•
If the connection of terminals 4/6 is broken, the K2 relay shall
be inactivated. (Simulation of the broken cable).
•
In manual reset, when terminals 3 and 5 and 4 and 6 are
shorted, only the red LED shall be illuminated. In order to
activate the K1 and K2 relays, press the reset button on
connected the RR terminals..
SAFETY UNIT TERMINALS
Safety unit terminal
SSZ-RZ4/
SSZ-RZ4B
24VAC/DC
3
SSZ-Sensor, terminal 3
4
SSZ-Sensor, terminal 4
5
SSZ-Sensor, terminal 5
6
SSZ-Sensor, terminal 6
9
Relay outputs - 2 circuit
10
Relay outputs - 2 circuit
11
Relay outputs - 1 circuit
12
Relay outputs - 1 circuit
13
External safety circuit*
14
External safety circuit *
R
Manual RESET button
R
Manual RESET button
31
Potential free output
32
Potential free output
VL
+24V AC/DC
VL
0V
•
* Opening of the circuit will cause switching to safety mode
The SSZ-RZ4 and SSZ-RZ4 B control units are
factory set to operate with automatic reset.
